Floating left or right wraps the content in a table that left or right aligns it.
<div class="float-left">Float left on all viewport sizes</div><br>
<div class="float-right">Float right on all viewport sizes</div><br>
<div class="float-none">Don't float on all viewport sizes</div>
<a class="btn btn-primary float-right" href="http://bootstrapemail.com">Right Floated Button</a>